Early life

Brennan was the second of eight children. His parents, William and Agnes (McDermott) Brennan, were Irish immigrants. They met in the United States, although both were originally from County Roscommon in Ireland. His father had little education; he worked as a metal polisher. However, he rose to a position of leadership, serving as the Commissioner of Public Safety for the city of Newark from 1917 to 1930.

Brennan gained the attention of Eisenhower's attorney general and chief legal affairs adviser, Herbert Brownell, when Brennan had to give a speech at a conference (as a substitute for New Jersey Supreme Court Chief Justice Vanderbilt). To Brownell, Brennan's speech seemed to suggest a marked conservatism, especially on criminal matters. Other factors playing into Brennan's appointment were his Catholicism, his status as a state court judge (no state judge had been appointed to the High Court since Cardozo in 1938), and Eisenhower's desire to appear bipartisan after his appointments of justices Earl Warren and John Harlan .

Warren Court

An outspoken liberal throughout his career, he played a leading role in the Warren Court's dramatic expansion of individual rights. Brennan played a large behind-the-scenes role during the Warren Court, coaxing more conservative colleagues to join the Court's decisions. Brennan's opinions with respect to voting (Baker v. Carr), criminal proceedings (Malloy v. Hogan), the free speech and establishment clauses of the First Amendment (Roth v. United States), and civil rights (Green v. School Board of New Kent County) were some of the most important opinions of the Warren Era. Brennan's role in expanding speech rights under the First Amendment is particularly notable, as he wrote the opinion of the court in 1964's New York Times v. Sullivan, which created constitutional restrictions on the law of libel. It was Brennan who coined the phrase "chilling effect", in 1965's Dombrowski v. Pfister. His close friendship with Chief Justice Warren, who frequently assigned Brennan the task of writing the majority opinion, led to the other justices nicknaming him the "deputy Chief".

Burger and Rehnquist Courts

On the more moderate Burger Court, Brennan was a staunch opponent of the death penalty, and a supporter of abortion rights, and joined the majority in landmark rulings on both issues (1972's Furman v. Georgia on the death penalty and 1973's Roe v. Wade on abortion). With the accession of the most conservative member of the court, William Rehnquist, to the position of Chief Justice, and the replacement of Warren Burger and the moderate Lewis Powell with conservatives Antonin Scalia and Anthony Kennedy, Brennan found himself more frequently isolated. At times his opinions would be joined only by Thurgood Marshall, as by 1975 the two were the last remaining liberal justices of the Warren Court (Byron White was the third survivor of the Warren Court during Rehnquist's tenure, but he often sided with the conservatives, especially on cases involving criminals and abortion). This likemindedness led to both Brennan and Marshall's clerks referring to them as 'Justice Brennan-Marshall' in the face of the court's heavy conservative opposition to the two. Brennan declared in Furman that he believed the death penalty violated the Eighth Amendment's prohibition on "cruel and unusual" punishment, and for his remaining years on the bench he and Marshall dissented from every case upholding the imposition of the death penalty. He was able to convince no other justice of this view, though Justice Harry Blackmun would eventually agree in 1994--after Brennan's retirement.

In his penultimate and final terms on the Court, he wrote the controversial rulings for Texas v. Johnson and United States v. Eichman, respectively. In both cases, the Court held that the First Amendment protects flag desecration.

Brennan's wife Marjorie died in 1982. A few months later, in 1983, he married Mary Fowler, who had served as his secretary for 26 years. He was 77 years old. Brennan's colleagues learned of his second marriage via a short office memo stating, "Mary Fowler and I were married yesterday and we have gone to Bermuda."

Judicial philosophy

Brennan's general strategy on cases was to acknowledge the validity of the governmental interest justifying the given law, but to find the law in question not narrowly tailored to achieve that interest. Thus, Brennan generally shied away from the absolutist positions of Justices Hugo Black and William O. Douglas, though he agreed with many of the results they would reach in cases involving individual rights. Brennan's conservative detractors, while acknowledging his legal acumen, thought him the embodiment of the worst features of judicial activism.

In the 1980s, as the Reagan administration and the Rehnquist Court threatened to "roll back" the decisions of the Warren Court, Brennan became more vocal about his jurisprudential views. In a 1985 speech at Georgetown University, Brennan criticized Attorney General Edwin Meese's call for a "jurisprudence of original intention" as "arrogance cloaked as humility" and advocated reading the U.S. Constitution to protect rights of "human dignity."

Brennan was also less interested in stare decisis or the avoidance of "absolutist" positions where the death penalty was concerned. Brennan and Thurgood Marshall concluded in Furman v. Georgia that the death penalty was, in all circumstances, unconstitutional, and never accepted the legitimacy of Gregg v. Georgia, which ruled that the death penalty was constitutional four years later. Thereafter, Brennan or Marshall took turns, joined by the other, in issuing a dissent in every denial of certiorari in a capital case, and from every decision in a case which the court did take which failed to vacate a sentence of death. (SeeWoodward, The Brethren; Lazarus, Closed Chambers.)

Brennan also authored a dissent from the denial of certiorari in Glass v. Louisiana. In Glass, the Court chose not to hear a case that challenged the constitutionality of the use of the electric chair as a form of execution.

Brennan wrote:

Th[e] evidence suggests that death by electrical current is extremely violent and inflicts pain and indignities far beyond the "mere extinguishment of life." Witnesses routinely report that, when the switch is thrown, the condemned prisoner "cringes," "leaps," and "fights the straps with amazing strength." "The hands turn red, then white, and the cords of the neck stand out like steel bands." The prisoner's limbs, fingers, toes, and face are severely contorted. The force of the electrical current is so powerful that the prisoner's eyeballs sometimes pop out and "rest on [his] cheeks." The prisoner often defecates, urinates, and vomits blood and drool.

Brennan concluded that electrocution is "nothing less than the contemporary technological equivalent of burning people at the stake.

Quotations by Brennan

"[W]e consider this case against the background of a profound national commitment to the principle that debate on public issues should be uninhibited, robust, and wide-open, and that it may well include vehement, caustic, and sometimes unpleasantly sharp attacks on government and public officials." In New York Times Co. v. Sullivan, 1964.

"I cannot accept the notion that lawyers are one of the punishments a person receives merely for being accused of a crime." Jones v. Barnes, 463 U.S. 745 (1983) (dissenting).

"Those whom we would banish from society or from the human community itself often speak in too faint a voice to be heard above society's demand for punishment. It is the particular role of courts to hear these voices, for the Constitution declares that the majoritarian chorus may not alone dictate the conditions of social life." McClesky v. Kemp, , 481 U.S. 279 (1987) (dissenting).